| 单词 | loudspeaker |
| 释义 | loudspeaker (once / 6291 pages) n WORD FAMILY loudspeaker: loudspeakers USAGE EXAMPLESPolice rang doorbells and used vans with loudspeakers to urge procrastinators to leave ahead of a 10 a.m. deadline. Time(Dec 25, 2016) Police vans with loudspeakers urged thousands to leave by the 10am deadline on 25 December. The Guardian(Dec 25, 2016) Police vans with loudspeakers urged procrastinators to leave ahead of a 10 a.m. deadline. Seattle Times(Dec 25, 2016) n electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance Syn|Hypo|Hyper loudspeaker system, speaker, speaker system, speaker unit bullhorn, loud hailer, loud-hailer a portable loudspeaker with built-in microphone and amplifier intercom speaker, squawk box, squawkerthe loudspeaker on an intercom or public address system subwoofera loudspeaker that is designed to reproduce very low bass frequencies tannoya loudspeaker tweetera loudspeaker that reproduces higher audio frequency sounds woofera loudspeaker that reproduces lower audio frequency sounds electro-acoustic transducer a transducer that converts electrical to acoustic energy or vice versa |
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